I have two bluetooth/usb car adapters one LaPower, the other APPS2CAR. They do a similar job, but operate quite differently on many aspects. They have their good and bad points.
The following photo shows the two units side by side. They were tested on my Mk3 Avensis with W53828 stereo fitted.
I will start with the LaPower unit first and say that my example works well playing from USB memory sticks (upto 32GB size). The stereo display on shows cd volumes up to 6 folders, and 99 tracks p